{"product_id":"kennametal-1849998-npr51-kc5025-carbide-profiling-insert","title":"Kennametal 1849998 NPR51 KC5025 Carbide Profiling Insert","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 1849998 is a solid carbide profiling and turning insert in the NPR51 Top Notch series, designed for precision external profiling and turning operations on CNC lathes and turning centers. It features an ultra-fine grain carbide substrate with a PVD-applied AlTiN coating under the KC5025 manufacturer grade, providing high wear resistance and thermal stability at elevated cutting speeds. The insert measures 0.125 inches thick with a 0.0156-inch corner radius, a parallelogram shape, and a 55-degree included angle. It is held in place by a screw-clamp method and is intended for use by experienced CNC machinists and tool-and-die professionals working in production turning environments.\u003c\/p\u003e\u003cp\u003eThis insert is suited for profiling and turning applications across a broad range of workpiece materials including steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. It operates with a negative rake angle and zero relief angle, making it compatible with rigid setups where insert strength and edge stability are critical. The 4 cutting edges per insert and maximum depth of cut of 0.1256 inches support efficient material removal in both roughing and finishing profile passes. Typical applications include contour turning, radius blending, and form-profile generation on turned components.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eUltra-fine grain carbide substrate with KC5025 PVD AlTiN coating for extended tool life on steel and stainless steel\u003c\/li\u003e\n\u003cli\u003e4 cutting edges per insert for cost-effective tooling use\u003c\/li\u003e\n\u003cli\u003e0.0156-inch (0.40 mm) corner radius for controlled surface finish on profiled contours\u003c\/li\u003e\n\u003cli\u003eParallelogram shape with 55-degree included angle for versatile profiling geometry\u003c\/li\u003e\n\u003cli\u003eNegative rake angle with screw-clamp insert holding for secure, repeatable seating\u003c\/li\u003e\n\u003cli\u003eCompatible with primary workpiece material codes P, M, K, N, and S covering steel through superalloys and titanium\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and standard fit for Top Notch series screw-clamp toolholders accepting NPR51 insert geometry (ISO code KCGX110304R15). Right-hand cutting orientation. Verify toolholder pocket geometry and insert size code NPR51 before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified CNC machinists or toolroom technicians. Power down and lock out the machine spindle before changing inserts. Use the appropriate Torx or hex key to seat the clamping screw to the toolholder manufacturer's specified seating method  -  do not over-torque the screw as this can crack the carbide insert. Inspect the toolholder pocket for chips or debris before seating the new insert to ensure proper contact and runout accuracy.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: NPR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 51\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Ultra Fine Grain\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: KC5025\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: AlTiN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape\u003c\/strong\u003e: Parallelogram\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 55 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 0 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: 10 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Negative\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChipbreaker\u003c\/strong\u003e: Common\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.125 inches (3.18 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 0.249 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 0.3769 inches (9.53 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSide Length\u003c\/strong\u003e: 0.3769 inches (11.60 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0156 inches (0.40 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.249 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.1256 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron, Non-Ferrous Metal, Superalloys and Titanium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications\u003c\/strong\u003e: Profiling, Turning\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: KCGX110304R15\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: Top Notch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242105\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.0073 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: KENNAMETAL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1849998\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51743457280306,"sku":"1849998","price":189.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/69bb5b40e1d6b7c5eb4eab32968b0021.jpg?v=1788847240","url":"https:\/\/voomisupply.com\/products\/kennametal-1849998-npr51-kc5025-carbide-profiling-insert","provider":"Voomi Supply","version":"1.0","type":"link"}